HPE P48908-B21 DL3X0 Gen11 1U High Performance Fan Kit
Overview
The P48908-B21 is a high-performance fan kit engineered for HPE ProLiant DL3X0 Gen11 1U rack servers. When a standard fan configuration is insufficient for high-TDP processor or dense storage configurations — think NVMe-heavy workloads or dual high-core-count CPUs running sustained loads — this kit provides the additional airflow capacity to hold thermals within spec and prevent throttling. If you're building out or upgrading a Gen11 DL3X0 platform that will run at or near peak utilization, this fan kit addresses the thermal headroom gap before it becomes a stability issue.
Compatibility
Designed specifically for the HPE ProLiant DL3X0 Gen11 1U server family. Verify your chassis generation before ordering — Gen10 and Gen10 Plus DL3X0 platforms use different fan assemblies and are not compatible with this kit. The "High Perf" designation indicates this kit is the correct choice when HPE's configuration tools or QuickSpecs call out a high-performance fan requirement, typically triggered by specific processor TDP thresholds or storage density rules within the DL3X0 Gen11 chassis.
Installation Notes
Fan kits in 1U HPE ProLiant platforms are tool-less, hot-plug capable assemblies in most Gen11 configurations — confirm your chassis supports hot-plug fan replacement before servicing under load. Follow HPE's IML (Integrated Management Log) and iLO thermal alerts as the authoritative signal for when replacement or upgrade is needed. Do not mix standard and high-performance fan modules within the same chassis; HPE firmware monitors fan presence and mismatched configurations can trigger health warnings or airflow faults.
